Printer&#39;s caliper



May 5, 1925.

F. A. PFEIFER PRINTER S CALIPER Filed Dec. 16, 1921 hmm 5s. N/ |h| u|"|| 1: FF O ,NM

Patented May 5,

nutren si'rnr E1s PATENT OFFICE.

cream-naive AQfrrinrrsajorfsi?arndsrsiln,oriiolAssienon To :una naennnnernnnnrive COMPANY, :01" srnrnerrnnn orare, COR-PORATION or* 'oHIo rninlrnns CAILIPER..

`appl`icanoir1ea December 16,1921J serial no. 522,740.

.To @ZZ wirt/mult may "concern:

le it known that I, Fenomeno A. .lifnirina a citiaenot the United States,1re siding at Springfield, in the county o'tClai-k and `State for hio, have inventedcertain `new and useul Improvements in llrinte'rs `talfipers, el? which the following is alspeci titration, reference being had therein to the accompanying drawing. Y

lhisinvention relates to; a'printers caliper .for `use in Ymeasuring 'forms and the like. l

l-xn ordinary rule cairnot'fbe conveniently used for measur'ina tvpe because the type t'aces project above the bodyvoi the type and rspace the edge of the rule so from the bodies that the measurements can no-t be accurately determined. A y n One object of the invention is to Vprovide such a device `with'whicb. type can be quickly and accurately measured, Y

Adurther object of 'theylinvention'isto provide a singledevice with which "type may be measured accurately according to any one'of a plurality ofscales. j

A turther object of the invention is to provide a device ofthis kindy which will be simple in construction and inexpensive to manufacture.

Other objects ot the invention may appear as the device is described in detail.

In the accompanyingdrawings Fig. l is au edge view of a device embodying my in- `relation; Fig. 2 is a. front elevation of such a device; Fig. 3 is a transverse sectional view on the line 3-3 of Fig. 2; Figs. 4, 51 G, and 7 are detail views showing ditferent positions in which the knee may be mounted on the rule.

In carrying.;` out my invention I provide a rule having a scale along one or more edges thereof and having parts adapted to engage the bodies of the type While the edge ot the rule rests upon the faces of the type, one or said parts being movable over the scale on said rule to enable the measurement to be determined when both parts are in engage ment with the type. In the present drawings I have illustrated one embodiment of my invention but it will be understood that this has been chosen for the purpose of illus tration only.

In that form of the device here shown the caliper comprises a body portion, or rule, l, which, as here shown, is provided along each i edge with a scale, each sca e being based'upon a different unit of; measurement. The lower scale,V as shown in Fig. 2, is pica and the-upper scale is in one-sixteenths et an inch. It desired the opjliosite'taces oi the rule may` also be pro videdl atboth edges with scales and these scales maybe dil'l'erent one from the other and` from those shown in F At one end of the scales .the rulev is provided kwith projections, or. hooks, extending beyondthe edges thereotl distances suliicient to enable the hook to engage the body ot the type when the adjacent edge 01"' the rule .is resting upon the tace otthe type. tlldably mounted upon the rule `is `the adjustable measuring member, or slide. 3. the lower portion of which is provided with a projection et also arranged to engage the body of the type when the adjacent edge Aof the rule'isresting upon the faces of the type. This slide is freely movable along the rule and may be locked in adjusted positions in any suitable manner, as by means ot a set screw 5, whenit is desired to transiter the measurement fromJ one form to; another. The edge of the slide adjacent to the hook ,Q constitutes a measuringedge and will in dicate on thescale the distance betweenthe iixed hook at the end of the rule and the projection on the slide. To facilitate the reading of the gures on the scale I have cut away the intermediate portion of one wall of the slide, permitting this wall to extend upwardly and downwardly from the respective ends ot' the slide far enough to iliorm guideways into which the respective edges of the rule extend. In making measurements it is, of course, necessary that that edge of the rule which is scaled according to the measurement desired should be adjacent to the type and that the scale should be on that face of the rule adjacent to the ope atoix In order that a plurality of scales may be used the slide is made reversible. By slipping the slide` ott the end of the rule and turning it face `for face and replacing it on the rule the open, or reading side. there of will be arranged on the opposite tace ol the rule, it being noted that both edges ot the slide are straight and constitute measuring edges and that the slide has a projection7 or hook. 4 in line with each measuring edge. By removing the slide from the rule and inverting it, it may be again placed on the rule with the open face thereof on either side and with the projections, or hooks, on the slide extending from the opposite edge of the rule, that is, the upper edge in Fig. 2. In this manner I am enabled to take readings from. any one of the four scales on the rule and these readings will be absolutely accurate. The device is exceedingly simple, both in construction and operation and can be produced at a low cost. Further, it has no parts likely to be disai'ranged oi' distorted so as to affect the accuracy of the reading'. The construction is such that the rule can be very quickly appled to a form and the measurement deteiinined and, if desired, the slide may be locked in its adjusted position to preserve the measurement or transfer the same to another form.

IVliile I have shown and described one embodiment of my invention I Wish it to be understood that I do not desire to be limited to the details thereof as various modifications niay occur to a person skilled in the art.

Having now fully described my invention what I claim as new and desire to secure by Letters Patent, is:

l. In a printers caliper, a rule having a scale on each face thereof and having at one end type engaging projections extending beyond the respective edges thereof, and a slide reversibly mounted on said rule, having type engaging projections at each side thereof and having a measuring edge adjar cent to each of said projections.

2. In a printers caliper, a rule having a pluiality of scales thereon and provided with type engaging projections extending beyond the respective edges thereof, and a slide ieversibly mounted on said rule and having a type engaging projection adapted to be arranged in opposed relation to either of the type engaging projections on said rule, said slide being adapted to be brought into operative relation with different scales on said i'ule when said slide is reversed on the rule.

3. In a printers caliper, a rule having a scale on each face thereof and provided with a type engaging projection extending beyond one edge tlieieof, a slide n'iounted on said rule, having type engaging projections on both sides thereof and having a measuring edge adjacent to each projection, said slide being reversible on said rule to position the same with either edge thereof in measuringposition and with either type engaging projection in opposed relation to the type engaging projection on said rule,

4. In a printers caliper, a rule having a scale at each edge of each face thereof and provided at one end with type engaging projections extending beyond the respective edges thereof, a slide mounted on said rule, having a type engaging projection at each side thereof and having a measuring edge adjacent to each type engaging projection, said slide also having an opening in one face thereof and being reversible on said rule to position said opening adjacent to either face of said rule and to cause the type engaging projections to extend beyond either edge of said rule.

In testimony whereof, I aiiix my signature hereto.

FERDINAND A. PFEIFER. 

